au.net.aba.crypto.spec
Class RC5KeySpec

java.lang.Object
  |
  +--au.net.aba.crypto.spec.RC5KeySpec

public class RC5KeySpec
extends java.lang.Object
implements java.security.spec.KeySpec

A class that provides a specification for a RC5 key, taken from the RC4 implementation.


Constructor Summary
RC5KeySpec(byte[] key)
          An RC5 key has an allowable range from 0..255.
RC5KeySpec(byte[] key, int len)
          An RC5 key has an allowable range from 0..255.
RC5KeySpec(byte[] key, int offset, int len)
          An RC5 key has an allowable range from 0..255.
 
Method Summary
 byte[] getKey()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RC5KeySpec

public RC5KeySpec(byte[] key)
           throws java.security.InvalidKeyException
An RC5 key has an allowable range from 0..255. We use the first 16 bytes here.

Parameters:
key - the bytes making up the key.
Throws:
java.security.InvalidKeyException - if the key material is too short.

RC5KeySpec

public RC5KeySpec(byte[] key,
                  int len)
           throws java.security.InvalidKeyException
An RC5 key has an allowable range from 0..255. Uses the first len bytes to form the RC5 key.

Parameters:
key - the bytes making up the key.
len - the size (in bytes) of the key to use.
Throws:
java.security.InvalidKeyException - if the key material is too short.

RC5KeySpec

public RC5KeySpec(byte[] key,
                  int offset,
                  int len)
           throws java.security.InvalidKeyException
An RC5 key has an allowable range from 0..255. Uses the first len bytes starting at offset>/tt> to form the RC5 key.

Parameters:
key - the bytes making up the key.
offset - the offset to start copying the key material.
len - the size (in bytes) of the key.
Throws:
java.security.InvalidKeyException - if the key material is too short.
Method Detail

getKey

public byte[] getKey()
Returns:
the RC5 key